Stock Options - Fair Value (Details)	12 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
2012 Employee Stock Option Plan
Stock option
Risk-free interest rates, min		0.60%	2.50%
Risk-free interest rates, max		2.10%	3.10%
Expected lives		10 years	10 years
Expected volatility, min		44.00%	48.00%
Expected volatility, max		46.00%	52.00%
Expected dividend yields		0.00%	0.00%
2012 Non-Employee Stock Option Plan
Stock option
Expected lives		10 years
Expected volatility		44.00%
Expected dividend yields		0.00%
2018 Non-Employee Stock Option Plan
Stock option
Risk-free interest rates, min		1.60%
Risk-free interest rates, max		1.80%
Risk-free interest rates			2.90%
Expected lives		10 years	10 years
Expected volatility, min		44.00%
Expected volatility, max		45.00%
Expected volatility			50.00%
2020 Non-Employee Stock Option Plan
Stock option
Risk-free interest rates	0.62%
Expected lives	10 years
Expected volatility	45.00%
Expected dividend yields	0.00%

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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No definition available.

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The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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No definition available.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

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No definition available.

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- Definition

The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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